3-Methoxy-2-nitro-6-(trifluoromethoxy)pyridine-5-sulfonamide
3-(Fluoromethyl)-2-methoxy-5-nitro-4-(trifluoromethoxy)pyridine
Methyl 2-(fluoromethyl)-3-iodo-6-(trifluoromethoxy)pyridine-4-carboxylate
3-(Fluoromethyl)-6-iodo-2-(trifluoromethoxy)pyridine-5-carboxylic acid